Metallic sheathing



A. H. TEEPLE.

Metal Punch.

No. 4,727. Patented Aug. 28. 1846.

UNITED STATES PATENT OFFICE.

ANDREW H. TEEPLE, OF NEW YORK, Y.

MACHINERY FOR PUNGHING METALLIC SHEA'IHING.

Specification of Letters Patent No. 4,727, dated August 28, 1846.

To all whom it may concern:

Be it known that LANDREW H. TEEPLE, of the city of New York, in theState of New York, have invented a new and useful Manner of ConstructingMachines for the Punching of Copper or other Metallic Sheathing; and Ido hereby declare that the following is a full and exact descriptionthereof.

In the machines for the punching of sheathing heretofore used, a platen,or follower, has been brought down upon the sheets, and by means ofpoints or punches, projecting therefrom, the holes have been punched inthe sheets, but this process is slow and inconvenient, much di'fiicultybeing found in the ready removal of the plates after being punched.

In the accompanying drawing I have represented my improved machine inwhich all these difiiculties are obviated.

A, A, is the frame which sustains two lates B, B which are, segments ofcylinders, of such length and width as are necessary to adapt them tothe receiving of the sheets to be punched. From one of these platesproject punches, or points a, a and the other is furnished withcorresponding holes, I), b. C, C, are arms firmly attached to the backsof the segment plates, and working on joint bolts, or centers, at c, 0,these bolts or centers, being in the centers of curvature of the platesB, B. These segment plates I gear together by suitable toothed segments,D, D, at their ends. E, is a gage strip to serve as a guide in layingthe sheets upon the machine. F, is a cross bar attached to the back ofthe upper segment, enabling a hand on either side of the machine to giveit the necessary vibration; G, is a stop piece which arrests the segmentplates when they have moved to the roper distance.

In using thls machine there is a person stationed on each side of it tofeed on, and to remove the sheets; those fed on by one of them beingremoved by the other, while a third hand may be employed in vibratingthe segments. The faces of the segment plates may be made either ofsheet or cast iron, as may be preferred. The curved form of these platesrenders the punching perfectly easy, and obviates all difficulty in theremoval of the punched sheets, as they are delivered on each sideperfectly disengaged from the punches.

Having thus fully described the manner in which I construct my machinefor punching metallic plates for sheathing, and shown the operation ofthe same, what I claim therein as new and desire to secure by LettersPatent, is-

The manner in which I have combined and arranged the respective partsthereof, so as to adapt it to the purpose in view; that is to say, Iclaim the combining and arranging of the segment plates, with theirpunches and corresponding cavities as described, said plates beinggeared together at their ends, and working upon suitable centers, therespective parts operating, and being operated upon, substantially asherein set forth; and I will here remark that double chains at each end,attached and arranged in a manner well known to machinists, may besubstituted for the toothed gearing; the vibration of the-segments alsomay be effected by a crank motion, and other changes may be made in theparticular manner of arranging some of the parts herein pointed out,without in any way departing from the general principle, or manner ofconstruct-ion, upon which the value of my machine is dependent; and I donot, therefore, intend by anything herein contained tolimit myself inthese particulars.

A. H. TEEPLE. WVitnesses:

JOHN MOARDLE', EDWARD W. BISHOP.

